JP3798045B2 - Combustion equipment with hot water filling function - Google Patents

Combustion equipment with hot water filling function Download PDF

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Publication number
JP3798045B2
JP3798045B2 JP19696595A JP19696595A JP3798045B2 JP 3798045 B2 JP3798045 B2 JP 3798045B2 JP 19696595 A JP19696595 A JP 19696595A JP 19696595 A JP19696595 A JP 19696595A JP 3798045 B2 JP3798045 B2 JP 3798045B2
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Prior art keywords
hot water
valve
water supply
passage
water filling
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JPH0926205A (en
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武雄 山口
良彦 田中
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株式会社ガスター
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Description

【0001】
【発明の属する技術分野】
本発明は、湯張り機能を備えた複合給湯器等の湯張り機能付燃焼機器に関するものである。
【0002】
【従来の技術】
図7には、浴槽1への湯張りや注水が可能な従来の一般的な湯張り機能付燃焼機器のシステムが示されている。このシステムの器具2は、自動風呂釜(複合給湯器)として知られており、器具2のケース3内に、給湯熱交換器4と追い焚き熱交換器5とが並設されている。
【0003】
追い焚き熱交換器5の入口側には入側管路6が接続されており、追い焚き熱交換器5の出側には出側管路7が接続されており、器具内の入側管路6と戻り側外部管路8とは、ジョイント部材10cを介して接続され、また、出側管路7と往側外部管路11とは、ジョイント部材10dを介して接続されている。そして、戻り側外部管路8の入口側と往側外部管路11の出口側は、循環金具12を介して浴槽1の側壁に連結され、これら戻り側外部管路8と入側管路6と追い焚き熱交換器5と出側管路7と往側外部管路11とで、浴槽1内の湯水を循環する追い焚き循環管路13が形成されており、入側管路6にはこの浴槽湯水の循環を行う循環ポンプ14が組み込まれている。なお、入側管路6に設けられている番号の15は湯水の流れを検出する流水スイッチ、16は浴槽1内の湯水の温度を検出する風呂温度センサである。
【0004】
前記給湯熱交換器4の入口側には器具内給水管路17が接続され、この器具内給水管路17と外部給水管路18とはジョイント部材10aを介して接続されている。
【0005】
給湯熱交換器4の出側には器具内給湯通路20が接続されており、この器具内給湯通路20は、ジョイント部材10bを介して器具外給湯通路21に接続されている。そして、器具外給湯通路21は、所望の給湯場所に配管され、図7に示す例では2箇所に分岐配管され、それぞれ出口側に給湯栓23a,23bが設けられている。
【0006】
前記器具内給湯通路20の途中には分岐通路30の一端側が接続されて、分岐通路30の他端側は入側管路6に接続され、器具内給湯通路20と入側管路6とは分岐通路30を介して連通されており、分岐通路30には開閉制御弁として機能する注湯電磁弁31が設けられている。分岐通路30と追い焚き循環管路13とにより湯張り通路が構成されており、注湯電磁弁31の下流側における湯張り通路(図7の例では分岐通路30)に、浴槽1の湯水の水位を水圧によって検出する圧力センサ37が介設されている。
【0007】
なお、図中、32は給水流量を検出する流量センサ、33は入水温度を検出する入水温度センサ、34は出湯温度を検出する出湯温度センサ、35は給湯熱交換器4からの給湯流量を調整する水量調整弁、36は必要に応じ設けられるバイパス通路である。
【0008】
この種の器具の給湯と、湯張りと、追い焚きの動作は制御装置42によって制御されており、給湯運転にあっては、給水温度を給湯の設定温度にすべく、バーナを燃焼して給湯熱交換器4を通る水を燃焼火力でもって加熱して設定温度の湯にし、給湯通路20,21を通して給湯を行う。
【0009】
また、湯張り動作時には、注湯電磁弁31を開け、給湯熱交換器4で作り出した湯を分岐通路30を通して追い焚き循環管路13に導き、この追い焚き循環管路13から浴槽1内に落とし込み、流量センサ32で検出される落とし込み水量が設定水位の水量となったとき(あるいは圧力センサ37で検出される浴槽1内の水位が設定水位になったとき)に注湯電磁弁31を閉じて湯張り動作を終了する。なお、この湯張り動作において、給湯熱交換器4のバーナを燃焼させないで、外部給水管路18から供給される水を、同様に、注湯電磁弁31を開けて浴槽1に落とし込むことにより、浴槽1に水が張られる。
【0010】
追い焚き動作時には、前記注湯電磁弁31を閉じた状態で循環ポンプ14を起動することにより、浴槽1内の湯水は追い焚き循環管路13を循環し、このとき、追い焚き熱交換器5のバーナ燃焼を行うことにより、循環湯水は、追い焚き熱交換器5を通るときに加熱されて追い焚きが行われ、風呂温度センサ16で検出される浴槽1内の湯温が風呂の設定温度に達したときに、循環ポンプ14を停止して追い焚き動作を終了する。
【0011】
上記の如く、制御装置42の運転制御により、給湯と、湯張りと、追い焚きの各運転が自動的に行われることとなる。
【0012】
【発明が解決しようとする課題】
ところで、上記湯張り通路を備えた器具2において、給湯栓からの出湯(給湯)が行われていたとき、給湯栓が閉じられると、給湯栓付近で湯水に急激な圧力変動が起こり、衝撃波が生じ、いわゆるウォーターハンマが発生し、このウォーターハンマが給湯通路21,20を逆流して湯張り通路30,13に伝わる。このとき、注湯電磁弁31が開弁して湯張りが行われている場合には、圧力センサ37が破損してしまう虞れがあった。
【0013】
本発明は上記課題を解決するためになされたものであり、その目的は、給湯栓の閉栓時に発生するウォーターハンマの湯張り通路への伝播を阻止し、圧力センサの破損を防止する湯張り機能付燃焼機器を提供することにある。
【0014】
【課題を解決するための手段】
本発明は上記目的を達成するために、次のような構成をもって前記課題を解決する手段を講じている。すなわち、第1の発明は、給湯熱交換器と、この給湯熱交換器の出側に接続される器具内給湯通路と、この器具内給湯通路に接続されて浴槽への湯の落とし込みを行う湯張り通路、この湯張り通路に設けられた注湯の開閉制御弁と、該注湯の開閉制御弁よりも下流側の湯張り通路位置に設けられ浴槽内湯水の水位を水圧によって検出する圧力センサとが器具ケース内に設けられている湯張り機能付燃焼機器において、前記器具内給湯通路を外部の器具外給湯通路に接続するジョイント部材が前記器具ケースの外側に露出させて設けられており、前記ジョイント部材の本体内には前記器具内給湯通路と器具外給湯通路とを連通させる通路が形成されると共に、給湯の供給水圧によって当該通路に設けられた弁孔を開け給湯停止によって弁孔を閉じる逆止弁が設けられており、この逆止弁は、前記弁孔と、この弁孔の開閉移動を行う弁体部とを有し、前記弁体部にはマグネットが組み込まれ、弁体部の近傍位置には弁孔の開弁動作をマグネットの磁気検出によって検知して開弁検知信号を出力する開弁検知手段が設けられ、この開弁検知手段と前記弁体部のマグネットとによって給湯確認スイッチ構成されており、前記ジョイント部材の本体には器具ケースの外側位置で栓体が挿入装着される嵌合筒壁が設けられていて該嵌合筒壁の筒孔は前記弁孔に連通しており、前記弁体部は該弁体部の開閉移動を可能に支持する係止保持体を介して前記栓体に取り付けられ、前記栓体の前記嵌合筒壁への嵌合着脱に連動して弁体部のジョイント本体内への取り付けと取り外しが行なわれることを特徴とし前記課題を解決する手段としている。
【0015】
また、第2の発明は、第1の発明の構成を備えたものにおいて、開弁検知手段から出力される開弁検知信号を受けている期間は注湯の開閉制御弁を閉止状態に維持する注湯閉止制御部を有する構成をもって前記課題を解決する手段としている。
【0016】
さらに、第3の発明は、第1又は第2の発明の構成を備えたものにおいて、開弁検知手段は嵌合筒壁の栓体挿入の入り口端よりも栓体挿入方向の奥側となる弁体部の近傍位置に設けられており、開弁検知手段のリード線は器具ケース側に伸びて器具ケース内の制御装置に導かれている構成をもって前記課題を解決する手段としている。
【0017】
上記構成の本発明において、例えば、給湯栓が開けられると、逆止弁の弁体部は供給水圧によって弁孔を開ける方向に移動し、弁孔を開け、湯水は逆止弁を介して流れ始める。このとき、開弁検知手段は弁体部のマグネットの磁気検出により弁孔の開弁動作を検知し、開弁検知信号の出力を開始する。
【0018】
また、給湯栓が閉められると、逆止弁の弁体部は弁孔を閉じる方向に移動する。弁孔が閉じられたときには、開弁検出手段は弁孔の開弁動作を検知しなくなり、開弁検知信号の出力を停止する。上記弁体部による弁孔の閉弁によって、給湯栓の閉栓により発生したウォーターハンマが逆止弁の上流側へ逆流するのが阻止され、湯張り通路に設けられた圧力センサの破損を防止する。
【0019】
また、注湯閉止制御部を有する湯張り機能付燃焼機器においては、注湯閉止制御部は、上記開弁検知手段の開弁検知信号を受けている期間、つまり、逆止弁が開弁状態の期間、注湯の開閉制御弁を閉止状態に維持する。給湯栓が複数個設けられている器具では、2個以上の給湯栓から出湯が行われていた状態で、例えば1個の給湯栓だけが閉じられても、他の給湯栓からの出湯が継続されているために逆止弁が閉弁せず、給湯栓の閉栓により発生したウォーターハンマが逆止弁で阻止されずに湯張り通路まで伝わってしまう。このような場合においても、前記の如く、逆止弁が開弁状態の期間、注湯の開閉制御弁を閉止状態に維持することによって、湯張り通路における開閉制御弁よりも下流側へのウォーターハンマの伝播を阻止し、注湯の開閉制御弁の下流側に設けられた圧力センサの破損を確実に回避する。
【0020】
【発明の実施の形態】
以下、本発明の実施の形態例を図面に基づいて説明する。なお、本実施の形態例の説明において、従来例と同一の名称部分には同一符号を付し、その重複説明は省略する。本実施の形態例の湯張り機能付燃焼機器は従来例と同様に複合給湯器(自動風呂釜)を対象にしており、図7に示す従来例と同様な器具構成を備えている。本実施の形態例において特徴的なことは、ジョイント部材10bに、逆止弁と、逆止弁の開弁動作を検知する給湯確認スイッチとを組み込んだことであり、また、給湯栓23の閉栓時に発生するウォーターハンマの伝播を阻止して圧力センサ37の保護を図るための注湯電磁弁31の開閉弁制御手段を設けたことも特徴とするところである。それ以外の構成は従来例と同様である。
【0021】
図1は逆止弁40と給湯確認スイッチを組み込んだジョイント部材10bの一実施の形態例を示すもので、ジョイント部材10bの本体内には流入通路44と流出通路45とが横方向に位置をずらして形成されており、流入通路44と流出通路45はほぼ直交する屈曲通路46を介して連通接続されており、流入通路44の入口側は器具ケース3から外に突き出た器具内給湯通路20の出口に接続され、流出通路45の出口側は器具外給湯通路21に接続される。
【0022】
前記流入通路44の出口(弁孔)側はほぼ直角横方向に向けられており、この流入通路44の出口側の通路壁部にはその横方向に突出させて弁座47が形成されている。
【0023】
流入通路44の出口の延長側に栓体43が挿入装着される嵌合筒壁48が伸設されており、この嵌合筒壁48の先端側内周面に設けた雌ねじ部に螺合させて、栓体43が装着されている。
【0024】
栓体43の挿入側外周面にはパッキン収容溝50が周設されており、このパッキン収容溝50にOリング51が収容され、このOリング51によって栓体43と嵌合筒壁48との気密(水密)が図られている。
【0025】
前記栓体43の中心部分には軸長方向に先端側開口の凹部空間52が形成されており、この凹部空間52の先端部には係止保持体53が嵌め込まれている。この係止保持体53の中心孔には弁ロッド57が摺動自在に挿通されており、弁ロッド57の凹部空間52側の端部には抜け止め防止用のストッパ(例えば、Eリング)58が固定されている。
【0026】
前記弁ロッド57の他端側には、図1および図3に示すように、弁取り付け部60が設けられ、この弁取り付け部60に弁61とガイド取り付け板55とがねじ固定されている。弁取り付け部60にはマグネット25が嵌合形成され、また、ガイド取り付け板55にはガイド54が突設されている。上記弁ロッド57と、ストッパ58と、弁取り付け部60と、マグネット25と、弁61と、ガイド取り付け板55と、ガイド54とによって弁体部28が構成されている。
【0027】
図1に示す前記係止保持体53と栓体43の間には弁ばね係止溝67が形成されており、この弁ばね係止溝67とマグネット25間には圧縮状態の弁ばね62が介設されており、この弁ばね62のばね圧によって、常時は、弁座47に弁61が圧接し、流出通路45側から流入通路44側への湯水の逆流が防止されている。栓体43に装着されている係止保持体53と、弁体部28と、流入通路44の出口(弁孔)と、弁座47とによって逆止弁40が構成されている。
【0028】
前記嵌合筒壁48の外周面には開弁検知手段保持部68が設けられ、この開弁検知手段保持部68によって開弁検知手段27が保持されている。この開弁検知手段27はリードスイッチによって構成されており、開弁検知手段27と制御装置42間には信号通信するためのリード線69が介設されている。上記開弁検知手段27と、弁体部28のマグネット25とにより給湯確認スイッチが構成されている。
【0029】
給湯確認スイッチは、開弁検知手段27が弁体部28のマグネット25の磁気検出によって流入通路44の出口(弁孔)の開弁動作を検知し開弁検知信号を出力するものである。本実施の形態例では、給湯栓23が開けられ、弁体部28が弁孔を開弁する方向に移動し始めて、図2に示すように、ガイド取り付け板55が弁孔から抜け出たとき、開弁検知手段27は、弁体部28のマグネット25の磁気検出によって、弁孔が開弁したと判断し、制御装置42への開弁検知信号の出力を開始し、このときの検知磁気以上強く磁気を検知している間、開弁検知信号の出力を継続して行う。
【0030】
次に、上記構成のジョイント部材10bが設けられた図7に示す器具2における注湯電磁弁31の開閉弁制御手段の構成を図4に基づいて説明する。上記注湯電磁弁31の開閉弁制御手段は、制御装置42に設けられ、注湯閉止制御部65と、湯張り制御部64とを有して構成されている。
【0031】
注湯閉止制御部65は、前記開弁検知手段27の開弁検知信号を受けている間、つまり、逆止弁40の弁孔が開弁状態である間、注湯停止信号を湯張り制御部64に出力する。
【0032】
湯張り制御部64は、リモコン等によって湯張り開始の指令を受けると、前記注湯閉止制御部65の注湯停止信号を受けているか否かを判断し、注湯停止信号を受けていないと判断したときには注湯電磁弁31を開け、湯張りを開始させる。また、注湯停止信号を受けていると判断したときには湯張り運転を行わずに待機し、注湯停止信号の受信終了後(逆止弁40の閉弁後)に注湯電磁弁31を開け、湯張りを開始させる。
【0033】
その後、湯張り制御部64は、湯張りの途中に、つまり、浴槽1の水位が設定水位に達する前に、注湯閉止制御部65の注湯停止信号を受けたとき(逆止弁40が開弁したとき)には注湯電磁弁31を閉じて一旦湯張りを停止させ、注湯停止信号の受信終了後に注湯電磁弁31を開けて湯張りを再開させる。また、流量センサ32で検出される浴槽1への落とし込み水量が設定水位の水量となったとき(あるいは圧力センサ37で検出される浴槽1内の水位が設定水位になったとき)に注湯電磁弁31を閉じて湯張りを終了させる。
【0034】
本実施の形態例によれば、ジョイント部材10bに逆止弁40と給湯確認スイッチとを組み込むことによって、部品点数を増加させずに、給湯栓23の閉栓時に発生するウォーターハンマが器具内給湯通路20へ逆流するのをほぼ阻止することができ、器具内給湯通路20に接続された分岐通路30の圧力センサ37の破損を回避することができる。
【0035】
また、給湯確認スイッチによって逆止弁40の弁孔の開弁動作を検知し、弁孔が開弁している期間は注湯電磁弁31を閉止状態に維持するので、給湯栓23の閉栓時に発生するウォーターハンマに起因した圧力センサ37の破損を次のような場合にも確実に回避することができる。例えば、給湯栓23aおよび23bからの出湯が共に行われていたとき、一方の給湯栓23(例えば23a)だけが閉じられたときには、他方の給湯栓23bから出湯が継続して行われているために逆止弁40は閉弁せず、給湯栓23aの閉栓によって発生したウォーターハンマは器具内給湯通路20を逆流して分岐通路30に到達してしまうが、このような場合にも、上記の如く、注湯電磁弁31が閉止状態であるので注湯電磁弁31よりも分岐通路30の下流側にウォーターハンマが伝播されることを阻止することができ、確実に圧力センサ37の破損を回避することができる。
【0036】
もちろん、1個の給湯栓23のみ出湯が行われていたときには、その給湯栓23が閉じられたときに発生するウォーターハンマの逆流は逆止弁40で阻止され、圧力センサ37の破損を確実に回避することができる。
【0037】
ところで、器具内給湯通路20と分岐通路30との接続部38よりも下流側に流水スイッチや流量センサ等の出湯検出センサを設け、この出湯検出センサが流水を検知している期間、つまり、給湯栓23からの出湯が行われている期間は、注湯電磁弁31を閉止状態に維持して給湯栓23からの出湯量の大幅な減少を防止する手段を講じることも考えられる。しかし、上記出湯検出センサを設ける分、部品点数が増加してしまう。これに対し、本実施の形態例では、ジョイント部材10bに給湯確認スイッチを組み込むので、その分部品点数を少なくすることができ、コスト低減を図ることができる。また、本発明は開弁検知手段27が給湯確認スイッチとして機能するばかりでなく、逆止弁40の開弁確認手段として機能するため、通水が停止しているにもかかわらず逆止弁40が開のままとなるようなトラブルに対しても開閉制御弁31を閉としてウォーターハンマが伝播することを防止し圧力センサ37保護が確実に行われる。
【0038】
なお、本発明は上記実施の形態例に限定されることはなく、様々な実施の態様を採り得る。例えば、上記実施の形態例は、圧力センサ37が分岐通路30に設けられているものであったが、圧力センサ37が追い焚き循環管路13に設けられているものにおいても、上記実施の形態例同様に逆止弁40と給湯確認スイッチとを設けて注湯電磁弁31の開閉制御を行うことによって、上記実施の形態例同様の効果を得ることができる。
【0039】
また、上記実施の形態例では、器具2として、自動風呂釜(複合給湯器)を対象にして説明したが、例えば、図9に示すように、分岐通路30にジョイント10dを介して湯張り管75を接続し、この湯張り管75の先端を浴槽1に接続して湯張り通路を構成し湯張りを行うようにした、給湯と湯張り機能を持たせた湯張り機能付燃焼機器に適用できる(この場合は図9のジョイント10bを図1に示すように逆止弁40と給湯確認スイッチとを組み込んだものに構成することになる)ことはもちろんのこと、給湯熱交換器4の給湯通路の途中に湯張り通路が接続されて、その湯張り通路に、開閉制御弁(注湯電磁弁)と、この開閉制御弁の下流側に圧力センサとが介設される構成を持つ器具であれば他の形態の器具においても本発明が適用されるものである。
【0040】
さらに、逆止弁40の弁体部28は、図1および図3に示す形態に限定されるものではなく、例えば、図5の(a)や(b)((b)は(a)の断面図)に示すように、弁取り付け部60と弁61との間にマグネット25を挟み込んだものや、弁61とガイド取り付け板55との間にマグネット25を挟み込んだものや、図6に示すように、マグネット25を弁61に内蔵させたものや、同様に、ガイド取り付け板55や弁取り付け部60にマグネット25を内蔵させたものや、ガイド取り付け板55又は弁取り付け部60をフェライト等の磁性材で形成したり、弁61をゴム等の非磁性材と磁性材との混合材等で形成してマグネットとして機能させ、図1および図3や図5や図6に示すマグネット25を省略したもの等、様々な形態を採り得る。
【0041】
上記マグネット25を弁61に内蔵させた場合、マグネット25によって弁(通常、ゴムで形成される)61の形崩れを防止することができる。
【0042】
さらに、上記実施の形態例では、ガイド取り付け板55や弁61やマグネット25や弁取り付け部60は円板状であったが、それらの形態は円板状に限定されるものではなく、三角形や四角形等の多角形でもよい。ただし、弁61は弁孔を閉弁させる形態でなければならない。
【0043】
さらに、上記実施の形態例は、ジョイント部材10bに逆止弁40および給湯確認スイッチを組み込んだ器具を例にして説明したが、図8に示すように、給湯通路20と分岐通路30との接続点38よりも下流側であって給湯栓23よりも上流側の給湯通路20に逆止弁40を設け、この逆止弁40の弁体部28にマグネットを組み込み、弁体部28の近傍位置に開弁検知手段を設けて給湯確認スイッチを構成し、上記実施の形態例同様に、注湯電磁弁31の開閉弁制御を行うようにしてもよく、給湯栓23の閉栓時のウォーターハンマに起因する圧力センサ37の破損を回避することができる。
【0044】
【発明の効果】
本発明によれば、給湯通路には前記湯張り通路の接続部よりも下流側であって給湯栓よりも上流側に逆止弁が設けられており、この逆止弁は、弁孔と、この弁孔の開閉移動を行う弁体部とを有し、前記弁体部にはマグネットが組み込まれ、弁体部の近傍位置には弁孔の開弁動作をマグネットの磁気検出によって検知して開弁検知信号を出力する開弁検知手段が設けられ、この開弁検知手段と前記弁体部のマグネットとによって給湯確認スイッチを構成したので、給湯栓が閉栓したときに発生するウォーターハンマの伝播を逆止弁で阻止することができ、湯張り通路に設けられた圧力センサの破損を回避することができる。
【0045】
また、上記の如く、逆止弁に給湯確認スイッチを組み込んだので、給湯確認スイッチとして機能する流水スイッチや流量センサ等の出湯検出センサを給湯通路における湯張り通路の接続部よりも下流側に別個に設ける場合に比べて、部品点数を少なくすることができ、装置のコストダウンが図れる。
【0046】
さらに、逆止弁および給湯確認スイッチが器具内給湯通路を器具外給湯通路に接続するジョイント部材に組み込まれているので、ジョイント部材の本体を逆止弁のハウジングとして兼用でき、逆止弁および給湯確認スイッチを別個に設ける場合に比べて、部品点数をさらに少なくすることができ、器具をより安価で提供することが可能となる。
【0047】
さらに、開弁検知手段から出力される開弁検知信号を受けている期間は注湯の開閉制御弁を閉止状態に維持する注湯閉止制御部を有する発明においては、次のような場合にも確実に圧力センサの破損を回避することができる。複数の給湯栓が設けられている器具で、2個以上の給湯栓から出湯が行われていたとき、例えば1個の給湯栓が閉じられたときには、逆止弁が閉弁しないため、給湯栓の閉栓時に発生したウォーターハンマが湯張り通路に到着してしまう虞れがあり、このような場合にも、上記の如く、注湯の開閉制御弁が閉止状態であるため、湯張り通路における開閉制御弁の下流側へのウォーターハンマの伝播は阻止され、開閉制御弁の下流側に設けられた圧力センサの破損を確実に回避することができる。
【図面の簡単な説明】
【図1】本実施の形態例の機器を構成する逆止弁と給湯確認スイッチとを組み込んだジョイント部材を示す説明図である。
【図2】本実施の形態例における給湯確認スイッチの開弁動作検知開始時のマグネット位置を示す説明図である。
【図3】図1の弁体部を示す説明図である。
【図4】本実施の形態例における注湯電磁弁の開閉弁制御手段の構成を示すブロック図である。
【図5】マグネットを組み込んだ弁体部のその他の実施の形態例を示す説明図である。
【図6】同じくマグネットを組み込んだ弁体部のさらにその他の実施の形態例を示す説明図である。
【図7】湯張り機能付燃焼機器の一例を示す説明図である。
【図8】その他の実施の形態例を示す説明図である。
【図9】本発明が適用される他の器具の一例を示す説明図である。
【符号の説明】
2 器具
4 給湯熱交換器
10a〜10d ジョイント部材
13 追い焚き循環管路
20 器具内給湯通路
21 器具外給湯通路
23 給湯栓
25 マグネット
26 弁孔
27 開弁検知手段
28 弁体部
30 分岐通路
31 注湯電磁弁
37 圧力センサ
65 注湯閉止制御部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combustion apparatus with a hot water filling function, such as a composite water heater having a hot water filling function.
[0002]
[Prior art]
FIG. 7 shows a conventional general combustion equipment system with a hot water filling function capable of hot water filling and water injection into the bathtub 1. The appliance 2 of this system is known as an automatic bath kettle (combined water heater), and a hot water supply heat exchanger 4 and a reheating heat exchanger 5 are arranged in parallel in a case 3 of the appliance 2.
[0003]
An inlet side pipe 6 is connected to the inlet side of the reheating heat exchanger 5, and an outlet side line 7 is connected to the outlet side of the reheating heat exchanger 5. The path 6 and the return side external pipe line 8 are connected via a joint member 10c, and the outlet side pipe line 7 and the forward side external pipe line 11 are connected via a joint member 10d. The inlet side of the return side external pipe line 8 and the outlet side of the forward side external pipe line 11 are connected to the side wall of the bathtub 1 through the circulation fitting 12, and the return side external pipe line 8 and the inlet side pipe line 6 are connected. The recirculation heat exchanger 5, the exit side conduit 7 and the outward side external conduit 11 form a recirculation circulation conduit 13 for circulating hot water in the bathtub 1. A circulation pump 14 for circulating the bathtub hot water is incorporated. The reference numeral 15 provided on the inlet side pipe 6 is a running water switch for detecting the flow of hot water, and 16 is a bath temperature sensor for detecting the temperature of hot water in the bathtub 1.
[0004]
An in-appliance water supply pipe 17 is connected to the inlet side of the hot water heat exchanger 4, and the in-appliance water supply pipe 17 and the external water supply pipe 18 are connected through a joint member 10a.
[0005]
An in-appliance hot water supply passage 20 is connected to the outlet side of the hot water supply heat exchanger 4, and the in-appliance hot water supply passage 20 is connected to an external hot water supply passage 21 through a joint member 10b. The external hot water supply passage 21 is piped to a desired hot water supply place. In the example shown in FIG. 7, two pipes are branched, and hot water supply taps 23a and 23b are respectively provided on the outlet side.
[0006]
One end of the branch passage 30 is connected to the hot water supply passage 20 in the appliance, and the other end of the branch passage 30 is connected to the inlet pipe 6. The branch passage 30 is communicated with and a pouring electromagnetic valve 31 that functions as an open / close control valve is provided in the branch passage 30. A hot water filling passage is constituted by the branch passage 30 and the recirculation circulation pipe 13, and the hot water of the bathtub 1 is connected to the hot water filling passage (the branch passage 30 in the example of FIG. 7) on the downstream side of the pouring solenoid valve 31. A pressure sensor 37 for detecting the water level by water pressure is interposed.
[0007]
In the figure, 32 is a flow rate sensor for detecting the feed water flow rate, 33 is an incoming water temperature sensor for detecting the incoming water temperature, 34 is a hot water temperature sensor for detecting the outgoing hot water temperature, and 35 is a hot water supply flow rate from the hot water supply heat exchanger 4. The water amount adjusting valve 36 is a bypass passage provided as necessary.
[0008]
The hot water supply, hot water filling, and reheating operation of this type of appliance are controlled by the control device 42. In the hot water supply operation, the burner is burned to bring the hot water temperature to the set temperature of the hot water supply. The water passing through the heat exchanger 4 is heated with combustion heat to make hot water of a set temperature, and hot water is supplied through the hot water supply passages 20 and 21.
[0009]
During hot water filling operation, the pouring solenoid valve 31 is opened, and the hot water produced by the hot water supply heat exchanger 4 is led to the recirculation circulation line 13 through the branch passage 30, and from the recirculation circulation line 13 into the bathtub 1. When the dropped water amount detected by the flow sensor 32 reaches the set water level (or when the water level in the bathtub 1 detected by the pressure sensor 37 reaches the set water level), the solenoid valve 31 is closed. Finish the hot water filling operation. In this hot water filling operation, without supplying the burner of the hot water supply heat exchanger 4, the water supplied from the external water supply pipe 18 is similarly dropped into the bathtub 1 by opening the hot water solenoid valve 31. Water is filled in the bathtub 1.
[0010]
During the reheating operation, the circulating pump 14 is started with the pouring solenoid valve 31 closed, so that the hot water in the bathtub 1 circulates in the recirculation circulation line 13. At this time, the reheating heat exchanger 5 By performing burner combustion, the circulating hot water is heated and reheated when passing through the reheating heat exchanger 5, and the hot water temperature in the bathtub 1 detected by the bath temperature sensor 16 is the set temperature of the bath. Is reached, the circulation pump 14 is stopped to end the chasing operation.
[0011]
As described above, the hot water supply, hot water filling, and reheating operations are automatically performed by the operation control of the control device 42.
[0012]
[Problems to be solved by the invention]
By the way, in the appliance 2 provided with the hot water passage, when hot water is discharged from the hot water tap (hot water), if the hot water tap is closed, a sudden pressure fluctuation occurs in the hot water near the hot water tap, and a shock wave is generated. As a result, a so-called water hammer is generated, and this water hammer flows back through the hot water supply passages 21 and 20 and is transmitted to the hot water filling passages 30 and 13. At this time, there is a possibility that the pressure sensor 37 may be damaged when the hot water solenoid valve 31 is opened and the hot water is filled.
[0013]
The present invention has been made to solve the above-mentioned problems, and its purpose is to prevent the pressure sensor from being damaged by preventing the water hammer from propagating to the hot water filling passage generated when the hot water tap is closed. It is to provide an attached combustion device.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides means for solving the above problems with the following configuration. That is, the first invention is a hot water supply heat exchanger, an in- appliance hot water supply passage connected to the outlet side of the hot water supply heat exchanger, and a hot water connected to the in- appliance hot water supply passage to drop hot water into the bathtub. and tension passage, pressure detection and opening and closing control valve of the pouring provided in the water filling passage, the water pressure the bathtub hot water of the water level provided in the hot water filling passage located downstream of the opening and closing control valve for the infusion water In the combustion equipment with a hot water filling function provided in the instrument case with a sensor , a joint member that connects the in-appliance hot water supply passage to an external external hot water supply passage is provided to be exposed to the outside of the instrument case. In the body of the joint member, there is formed a passage for connecting the hot water supply passage in the appliance and the hot water supply passage outside the appliance, and a valve hole provided in the passage is opened by hot water supply water pressure to stop the hot water supply valve. The Jill and check valves are provided, the check valve, said valve hole, and a valve body for opening and closing movement of the valve hole, the magnet is incorporated in the valve body portion, the valve A valve opening detecting means for detecting the valve opening operation of the valve hole by magnetic detection of the magnet and outputting a valve opening detection signal is provided at a position in the vicinity of the body portion. The valve opening detecting means and the magnet of the valve body portion are provided. A hot water supply confirmation switch is constituted by the fitting member body, and the joint member body is provided with a fitting cylinder wall into which the plug body is inserted and mounted at an outer position of the instrument case. The valve body portion is attached to the plug body via a locking holder that supports the valve body portion so that the valve body portion can be opened and closed, and the plug body is fitted to the fitting cylinder wall. that in conjunction with the case detachable mounting and removal of the valve body of the joint body is performed And a means for solving the above problems is characterized.
[0015]
Moreover, 2nd invention is provided with the structure of 1st invention , WHEREIN: During the period which has received the valve-opening detection signal output from a valve-opening detection means, the pouring open / close control valve is maintained in a closed state. Note with a structure that having a water closure control unit has a means for solving the above problems.
[0016]
Further, the third invention is the one provided with the configuration of the first or second invention , wherein the valve opening detecting means is located on the back side in the plug body insertion direction from the inlet end of the plug body insertion of the fitting cylinder wall. It is provided in the vicinity of the valve body, and the lead wire of the valve opening detection means extends to the instrument case side and is guided to the control device in the instrument case as means for solving the above problems.
[0017]
In the present invention having the above configuration, for example, when the hot water tap is opened, the valve body of the check valve moves in the direction of opening the valve hole by the supply water pressure, the valve hole is opened, and the hot water flows through the check valve. start. At this time, the valve opening detection means detects the valve opening operation of the valve hole by the magnetic detection of the magnet of the valve body, and starts outputting the valve opening detection signal.
[0018]
Further, when the hot water tap is closed, the valve body portion of the check valve moves in the direction of closing the valve hole. When the valve hole is closed, the valve opening detection means stops detecting the valve hole opening operation and stops outputting the valve opening detection signal. By closing the valve hole by the valve body portion, the water hammer generated by closing the hot water tap is prevented from flowing back to the upstream side of the check valve, thereby preventing the pressure sensor provided in the hot water filling passage from being damaged. .
[0019]
In addition, in a combustion appliance with a filling function having a hot water closing control unit, the hot water closing control unit is in a period during which the valve opening detection signal of the valve opening detection means is received, that is, the check valve is in an open state. During this period, the pouring open / close control valve is kept closed. For appliances with multiple hot-water taps, hot water from other hot-water taps continues even if, for example, only one hot-water tap is closed while hot water is being discharged from two or more hot-water taps. For this reason, the check valve does not close, and the water hammer generated by closing the hot water tap is transmitted to the hot water filling passage without being blocked by the check valve. Even in such a case, as described above, the pouring open / close control valve is maintained in the closed state during the period when the check valve is in the open state, so that the water downstream from the open / close control valve in the pouring passage is reduced. Propagation of the hammer is prevented, and damage to the pressure sensor provided on the downstream side of the pouring open / close control valve is surely avoided.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals are assigned to the same name portions as those in the conventional example, and the duplicate description thereof is omitted. The combustion apparatus with a hot water filling function of the present embodiment is intended for a composite water heater (automatic bath) as in the conventional example, and has the same instrument configuration as in the conventional example shown in FIG. What is characteristic in the present embodiment is that the joint member 10b incorporates a check valve and a hot water supply confirmation switch for detecting the valve opening operation of the check valve. Another feature is that an on-off valve control means for the pouring electromagnetic valve 31 is provided to prevent the propagation of water hammer that sometimes occurs to protect the pressure sensor 37. Other configurations are the same as those of the conventional example.
[0021]
FIG. 1 shows an example of an embodiment of a joint member 10b incorporating a check valve 40 and a hot water supply confirmation switch. In the body of the joint member 10b, an inflow passage 44 and an outflow passage 45 are positioned laterally. The inflow passage 44 and the outflow passage 45 are connected to each other via a substantially perpendicular bent passage 46, and the inlet side of the inflow passage 44 protrudes outward from the instrument case 3. The outlet side of the outflow passage 45 is connected to the external hot water supply passage 21.
[0022]
The outlet (valve hole) side of the inflow passage 44 is oriented in a substantially right-and-left lateral direction, and a valve seat 47 is formed on the passage wall portion on the outlet side of the inflow passage 44 so as to protrude in the lateral direction. .
[0023]
A fitting cylinder wall 48 into which the plug 43 is inserted and attached is extended on the extension side of the outlet of the inflow passage 44, and is screwed into a female thread portion provided on the inner peripheral surface on the tip side of the fitting cylinder wall 48. The plug 43 is attached.
[0024]
A packing housing groove 50 is provided around the insertion-side outer peripheral surface of the plug body 43, and an O-ring 51 is received in the packing housing groove 50, and the plug body 43 and the fitting cylindrical wall 48 are formed by the O-ring 51. Airtight (watertight) is achieved.
[0025]
A concave space 52 having an opening on the distal end side is formed in the axial direction in the central portion of the plug body 43, and a locking holder 53 is fitted in the distal end portion of the concave space 52. A valve rod 57 is slidably inserted in the center hole of the retaining holder 53, and a stopper (for example, an E-ring) 58 for preventing the valve rod 57 from coming off at the concave space 52 side end. Is fixed.
[0026]
As shown in FIGS. 1 and 3, a valve mounting portion 60 is provided on the other end side of the valve rod 57, and a valve 61 and a guide mounting plate 55 are screwed to the valve mounting portion 60. A magnet 25 is fitted and formed on the valve mounting portion 60, and a guide 54 is projected from the guide mounting plate 55. A valve body portion 28 is constituted by the valve rod 57, the stopper 58, the valve mounting portion 60, the magnet 25, the valve 61, the guide mounting plate 55, and the guide 54.
[0027]
A valve spring locking groove 67 is formed between the locking holder 53 and the plug 43 shown in FIG. 1, and a compressed valve spring 62 is interposed between the valve spring locking groove 67 and the magnet 25. Due to the spring pressure of the valve spring 62, the valve 61 is normally in pressure contact with the valve seat 47, and back flow of hot water from the outflow passage 45 side to the inflow passage 44 side is prevented. A check valve 40 is constituted by the latch holding body 53 attached to the plug body 43, the valve body portion 28, the outlet (valve hole) of the inflow passage 44, and the valve seat 47.
[0028]
A valve opening detecting means holding portion 68 is provided on the outer peripheral surface of the fitting cylinder wall 48, and the valve opening detecting means 27 is held by the valve opening detecting means holding portion 68. The valve opening detecting means 27 is constituted by a reed switch, and a lead wire 69 for signal communication is interposed between the valve opening detecting means 27 and the control device. The valve opening detection means 27 and the magnet 25 of the valve body portion 28 constitute a hot water supply confirmation switch.
[0029]
In the hot water supply confirmation switch, the valve opening detecting means 27 detects the valve opening operation of the outlet (valve hole) of the inflow passage 44 by the magnetic detection of the magnet 25 of the valve body portion 28 and outputs a valve opening detection signal. In the present embodiment, when the hot-water tap 23 is opened and the valve body 28 begins to move in the direction of opening the valve hole, as shown in FIG. 2, when the guide mounting plate 55 comes out of the valve hole, The valve opening detection means 27 determines that the valve hole has been opened by the magnetic detection of the magnet 25 of the valve body portion 28, and starts outputting the valve opening detection signal to the control device 42. While strongly detecting magnetism, the valve opening detection signal is continuously output.
[0030]
Next, the configuration of the on / off valve control means of the pouring electromagnetic valve 31 in the appliance 2 shown in FIG. 7 provided with the joint member 10b having the above configuration will be described with reference to FIG. The on / off valve control means of the pouring electromagnetic valve 31 is provided in the control device 42 and includes a pouring / closing control unit 65 and a hot water filling control unit 64.
[0031]
The hot water closing control unit 65 performs hot water filling control of the hot water stop signal while receiving the valve opening detection signal of the valve opening detecting means 27, that is, while the valve hole of the check valve 40 is open. Output to part 64.
[0032]
When the hot water filling control unit 64 receives a hot water filling start command from a remote controller or the like, it determines whether or not it has received a pouring stop signal from the hot water closing control unit 65, and if it has not received a pouring stop signal When judged, the hot water solenoid valve 31 is opened to start filling. When it is determined that a pouring stop signal has been received, the system waits without performing the filling operation and opens the pouring solenoid valve 31 after the pouring stop signal is received (after the check valve 40 is closed). Start the hot water filling.
[0033]
Thereafter, when the hot water filling control unit 64 receives a pouring stop signal from the hot water closing control unit 65 during the hot water filling, that is, before the water level of the bathtub 1 reaches the set water level (the check valve 40 is turned on). When the valve is opened), the hot water solenoid valve 31 is closed to temporarily stop the hot water filling, and after the pouring stop signal is received, the hot water electromagnetic valve 31 is opened to restart the hot water filling. In addition, when the amount of water dropped into the bathtub 1 detected by the flow sensor 32 reaches the set water level (or when the water level in the bathtub 1 detected by the pressure sensor 37 reaches the set water level) The valve 31 is closed to end the filling.
[0034]
According to the present embodiment, by incorporating the check valve 40 and the hot water supply confirmation switch into the joint member 10b, the water hammer generated when the hot water tap 23 is closed without increasing the number of parts is provided in the hot water supply passage in the appliance. Backflow to 20 can be substantially prevented, and breakage of the pressure sensor 37 in the branch passage 30 connected to the in-appliance hot water supply passage 20 can be avoided.
[0035]
In addition, the opening operation of the valve hole of the check valve 40 is detected by the hot water supply confirmation switch, and the hot water solenoid valve 31 is kept closed while the valve hole is open. Damage to the pressure sensor 37 due to the generated water hammer can be reliably avoided even in the following cases. For example, when hot water from the hot water taps 23a and 23b has been performed together, when only one hot water tap 23 (for example, 23a) is closed, hot water is continuously discharged from the other hot water tap 23b. On the other hand, the check valve 40 does not close, and the water hammer generated by closing the hot water tap 23a flows back through the hot water supply passage 20 in the appliance and reaches the branch passage 30. Thus, since the pouring solenoid valve 31 is in the closed state, it is possible to prevent the water hammer from being propagated downstream of the pouring solenoid valve 31 in the branch passage 30 and reliably avoid the damage of the pressure sensor 37. can do.
[0036]
Of course, when only one hot-water tap 23 is discharged, the backflow of the water hammer that occurs when the hot-water tap 23 is closed is blocked by the check valve 40, and the pressure sensor 37 is reliably damaged. It can be avoided.
[0037]
By the way, a hot water detection sensor such as a flowing water switch or a flow rate sensor is provided downstream of the connecting portion 38 between the hot water supply passage 20 in the appliance and the branch passage 30, and the hot water detection sensor detects the flowing water, that is, hot water supply. During the period when the hot water is discharged from the tap 23, it is conceivable to take measures to prevent the drastically decreasing the amount of hot water discharged from the hot water tap 23 by keeping the pouring solenoid valve 31 closed. However, the number of parts is increased by providing the hot water detection sensor. On the other hand, in the present embodiment, since the hot water supply confirmation switch is incorporated in the joint member 10b, the number of parts can be reduced correspondingly, and the cost can be reduced. In the present invention, the valve opening detection means 27 not only functions as a hot water supply confirmation switch, but also functions as a valve opening confirmation means of the check valve 40. Even for troubles that remain open, the open / close control valve 31 is closed to prevent the water hammer from propagating and the pressure sensor 37 is reliably protected.
[0038]
In addition, this invention is not limited to the said embodiment, Various aspects can be taken. For example, in the above-described embodiment, the pressure sensor 37 is provided in the branch passage 30, but the above-described embodiment is also applicable to the case where the pressure sensor 37 is provided in the recirculation circulation pipe 13. Similar to the example, by providing the check valve 40 and the hot water supply confirmation switch to control the opening and closing of the pouring electromagnetic valve 31, the same effect as in the above embodiment can be obtained.
[0039]
In the above embodiment, the appliance 2 is described as an automatic bath pot (combined water heater). For example, as shown in FIG. 9, a hot water pipe is connected to the branch passage 30 via a joint 10d. Applicable to combustion equipment with hot water filling function with hot water filling and hot water filling function, where the hot water filling pipe 75 is connected to the end of the hot water filling pipe 75 and connected to the bathtub 1 to form the hot water filling passage. 9 (in this case, the joint 10b in FIG. 9 is configured to incorporate a check valve 40 and a hot water supply confirmation switch as shown in FIG. 1), as well as hot water in the hot water heat exchanger 4 A hot water filling passage is connected in the middle of the passage, and the hot water filling passage has an open / close control valve (pouring solenoid valve) and a pressure sensor downstream of the open / close control valve. If present, the present invention can be applied to other types of devices.
[0040]
Further, the valve body portion 28 of the check valve 40 is not limited to the form shown in FIGS. 1 and 3. For example, (a) and (b) ((b) in FIG. As shown in FIG. 6, the magnet 25 is sandwiched between the valve mounting portion 60 and the valve 61, the magnet 25 is sandwiched between the valve 61 and the guide mounting plate 55, and As described above, the magnet 25 is built in the valve 61, similarly, the guide mounting plate 55 and the valve mounting portion 60 are built in the magnet 25, and the guide mounting plate 55 or the valve mounting portion 60 is made of ferrite or the like. It is made of a magnetic material, or the valve 61 is made of a mixture of a non-magnetic material such as rubber and a magnetic material so as to function as a magnet, and the magnet 25 shown in FIGS. 1, 3, 5 and 6 is omitted. It can take various forms such as
[0041]
When the magnet 25 is incorporated in the valve 61, the magnet 25 can prevent the valve 61 (usually formed of rubber) 61 from being deformed.
[0042]
Furthermore, in the above embodiment, the guide mounting plate 55, the valve 61, the magnet 25, and the valve mounting portion 60 were disk-shaped, but their form is not limited to the disk shape, and the triangle or It may be a polygon such as a rectangle. However, the valve 61 must be configured to close the valve hole.
[0043]
Further, the above embodiment has been described by taking as an example an instrument in which the check valve 40 and the hot water supply confirmation switch are incorporated in the joint member 10b. However, as shown in FIG. 8, the hot water supply passage 20 and the branch passage 30 are connected. A check valve 40 is provided in the hot water supply passage 20 downstream of the point 38 and upstream of the hot water tap 23, and a magnet is incorporated in the valve body portion 28 of the check valve 40, so that the position in the vicinity of the valve body portion 28 is provided. As shown in the above embodiment, the on / off valve control of the hot water solenoid valve 31 may be performed to provide a water hammer when the hot water tap 23 is closed. The resulting damage to the pressure sensor 37 can be avoided.
[0044]
【The invention's effect】
According to the present invention, the hot water supply passage is provided with a check valve on the downstream side of the connecting portion of the hot water filling passage and on the upstream side of the hot water tap, the check valve includes a valve hole, A valve body part that opens and closes the valve hole, a magnet is incorporated in the valve body part, and a valve opening operation of the valve hole is detected by magnetic detection of the magnet at a position near the valve body part. A valve opening detection means for outputting a valve opening detection signal is provided, and a hot water supply confirmation switch is configured by the valve opening detection means and the magnet of the valve body portion, so that propagation of water hammer generated when the hot water tap is closed Can be blocked by a check valve, and damage to the pressure sensor provided in the hot water filling passage can be avoided.
[0045]
Further, as described above, since the hot water check switch is incorporated in the check valve, the hot water detection sensor such as the water flow switch and the flow rate sensor functioning as the hot water check switch is separately provided downstream of the connecting portion of the hot water passage in the hot water passage. The number of parts can be reduced as compared with the case where the apparatus is provided, and the cost of the apparatus can be reduced.
[0046]
Further, since the check valve and the hot water supply verification switch is incorporated into the joint member connecting the instrument in the supplying passageway to the instrument outside the hot water supply passage, it can also used the body of the joint member as a housing of the check valve, the check valve and the hot water supply Compared with the case where the confirmation switch is provided separately, the number of parts can be further reduced, and the instrument can be provided at a lower cost.
[0047]
Further, in the invention having the pouring / closing control section for maintaining the pouring open / close control valve in the closed state during the period when the valve opening detection signal output from the valve opening detecting means is received, Damage to the pressure sensor can be avoided reliably. When the hot water is discharged from two or more hot water taps in an appliance provided with a plurality of hot water taps, for example, when one hot water tap is closed, the check valve does not close. There is a possibility that the water hammer generated at the time of closing of the water will arrive at the hot water filling passage. In such a case, as described above, since the pouring open / close control valve is closed, Propagation of the water hammer to the downstream side of the control valve is prevented, and damage to the pressure sensor provided on the downstream side of the open / close control valve can be reliably avoided.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory view showing a joint member incorporating a check valve and a hot water supply confirmation switch that constitute a device according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a magnet position at the start of detection of a valve opening operation of a hot water supply confirmation switch in the present embodiment.
FIG. 3 is an explanatory view showing a valve body portion of FIG. 1;
FIG. 4 is a block diagram showing a configuration of an on / off valve control means of a pouring electromagnetic valve in the present embodiment.
FIG. 5 is an explanatory view showing another embodiment of a valve body portion incorporating a magnet.
FIG. 6 is an explanatory view showing still another embodiment of the valve body portion incorporating the magnet.
FIG. 7 is an explanatory view showing an example of a combustion device with a hot water filling function.
FIG. 8 is an explanatory diagram showing another embodiment.
FIG. 9 is an explanatory view showing an example of another instrument to which the present invention is applied.
[Explanation of symbols]
2 Appliance 4 Hot water supply heat exchanger
10a ~ 10d Joint member
13 Recirculation circuit
20 Hot water passage in the appliance
21 External hot water passage
23 Hot water tap
25 Magnet
26 Valve hole
27 Valve opening detection means
28 Valve body
30 branch passage
31 Pouring solenoid valve
37 Pressure sensor
65 Pouring control section

Claims (3)

給湯熱交換器と、この給湯熱交換器の出側に接続される器具内給湯通路と、この器具内給湯通路に接続されて浴槽への湯の落とし込みを行う湯張り通路、この湯張り通路に設けられた注湯の開閉制御弁と、該注湯の開閉制御弁よりも下流側の湯張り通路位置に設けられ浴槽内湯水の水位を水圧によって検出する圧力センサとが器具ケース内に設けられている湯張り機能付燃焼機器において、前記器具内給湯通路を外部の器具外給湯通路に接続するジョイント部材が前記器具ケースの外側に露出させて設けられており、前記ジョイント部材の本体内には前記器具内給湯通路と器具外給湯通路とを連通させる通路が形成されると共に、給湯の供給水圧によって当該通路に設けられた弁孔を開け給湯停止によって弁孔を閉じる逆止弁が設けられており、この逆止弁は、前記弁孔と、この弁孔の開閉移動を行う弁体部とを有し、前記弁体部にはマグネットが組み込まれ、弁体部の近傍位置には弁孔の開弁動作をマグネットの磁気検出によって検知して開弁検知信号を出力する開弁検知手段が設けられ、この開弁検知手段と前記弁体部のマグネットとによって給湯確認スイッチ構成されており、前記ジョイント部材の本体には器具ケースの外側位置で栓体が挿入装着される嵌合筒壁が設けられていて該嵌合筒壁の筒孔は前記弁孔に連通しており、前記弁体部は該弁体部の開閉移動を可能に支持する係止保持体を介して前記栓体に取り付けられ、前記栓体の前記嵌合筒壁への嵌合着脱に連動して弁体部のジョイント本体内への取り付けと取り外しが行なわれることを特徴とする湯張り機能付燃焼機器。 A hot water supply heat exchanger, an instrument in the hot water supply passage connected to the outlet side of the hot water supply heat exchanger, a hot water filling passage performing darken the hot water into the bathtub is connected to the instrument within the hot water supply passage, the hot water filling passage Note the hot water opening and closing control valve provided in, provided on the pressure sensor and is within the instrument casing detected by the water pressure of the bathtub hot water of the water level provided in the hot water filling passage located downstream of the opening and closing control valve for the infusion water In the combustion equipment with a hot water filling function, a joint member that connects the hot water supply passage in the appliance to an external hot water supply passage outside the appliance is exposed to the outside of the appliance case, and is provided in the body of the joint member. Is provided with a check valve that opens a valve hole provided in the passage by hot water supply water pressure and closes the valve hole by stopping hot water supply. The Ri, the check valve, said valve hole, and a valve body for opening and closing movement of the valve hole, the magnet is incorporated in the valve body portion, the vicinity of the valve body the valve hole the opening operation is detected by the magnetic detection of the magnet valve opening detecting means for outputting a valve opening detection signal provided with is configured hot water supply confirmation switch by the magnet of the valve body portion and the valve opening detection means The body of the joint member is provided with a fitting cylinder wall into which a plug is inserted and mounted at an outer position of the instrument case, and the cylinder hole of the fitting cylinder wall communicates with the valve hole. The body part is attached to the plug body through a latching holding body that supports the opening and closing movement of the valve body part, and the valve body part is interlocked with fitting / detaching of the plug body to / from the fitting cylinder wall. with hot water filling functions installation and removal of the joint body of which it is characterized in that performed Baking equipment. 開弁検知手段から出力される開弁検知信号を受けている期間は注湯の開閉制御弁を閉止状態に維持する注湯閉止制御部を有する請求項1記載の湯張り機能付燃焼機器。Claim 1 Symbol placement water filling functions with burning appliance period has pouring closure control unit to maintain close control valve of the pouring to the closed state undergoing opening detection signal output from the valve opening detection means. 開弁検知手段は嵌合筒壁の栓体挿入の入り口端よりも栓体挿入方向の奥側となる弁体部の近傍位置に設けられており、開弁検知手段のリード線は器具ケース側に伸びて器具ケース内の制御装置に導かれていることを特徴とする請求項1又は請求項2記載の湯張り機能付燃焼機器。 The valve opening detecting means is provided in the vicinity of the valve body portion on the back side in the plug body insertion direction from the inlet end of the plug body insertion of the fitting cylinder wall, and the lead wire of the valve opening detecting means is the instrument case side claim 1 or claim 2 water filling functions with combustion apparatus according you characterized in that it is guided to the control device in the instrument casing extends.
JP19696595A 1995-07-10 1995-07-10 Combustion equipment with hot water filling function Expired - Fee Related JP3798045B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19696595A JP3798045B2 (en) 1995-07-10 1995-07-10 Combustion equipment with hot water filling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19696595A JP3798045B2 (en) 1995-07-10 1995-07-10 Combustion equipment with hot water filling function

Publications (2)

Publication Number Publication Date
JPH0926205A JPH0926205A (en) 1997-01-28
JP3798045B2 true JP3798045B2 (en) 2006-07-19

Family

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Family Applications (1)

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Country Link
JP (1) JP3798045B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010272C1 (en) * 1998-10-08 2000-04-11 Heatex Bv Device for heating tap water and tap water installation.
JP2001141094A (en) * 1999-11-12 2001-05-25 Matsushita Electric Ind Co Ltd Fluid control valve

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